Poor man's port scan blocker

working with cisco IOS on 3750's at the access level, Nexus 7K's at the core.
I need to find a cheap but relatively harmless way to block port scans. We have not typically had to do this, most people on the internal network behave themselves. But we have a programmer bent on proving she's an "ethical hacker" and frankly I haven't got time for this nonsense.
I would just shut down her physical port but she runs these 'tools' from a vm-server and there are other hosts running on the same physical NIC so I can't just shut off that port.
I was looking into CBAC but I need to be very careful how I craft the ACL so as not to cause legitimate traffic to cease. That would be an RPE. Has anyone seen a detailed write up on how to proceed? The training I took just sort of 'touched' on it...kind of like "here's this other feature" but didn't really delve deeply into specifics. I did a search on google and was overwhelmed. The first couple of articles I located, probably just by cooincidence, were written for folks already steeped in the spy vs. spy world and so were way over my KB threshold. As I said, I can't afford to make a mistake here.
Anyone have some tips on where I can get started on this? Thanks so much in advance.

Hi
Well there are several ways you can handle this.
but lets first make it the way it is supposed to be handled.
1) is she breaking any IT policy ? If yes then let HR deal with the offending programmer, just make sure that they have enough proof to swat the offender hard.
If the answer is no, no policy of the company is broken then frankly I doubt that it is your responsibility to fix the problem, wich in this case is that the IT policy is lagging behind what is desireable.
Lets ignore the above part and check on what you asked for.
First of all since the machine is a vm machine in an esx host you will have problems to halt traffic simply because not all traffic does leave the ESX host.
So what can you do ? Is the ip address static or dynamic ?
If it is a static ip address then you can easily write an ACL that allows what she is supposed to be able to do from that machine and then block the rest from that particular machine and then allow everything else.
Since you did not have an ACL from the beginning this should only impact her ability to scan.
If the 3750 software is quite new you can setup an ACL with a connection to an EEM and TCL script that IF she starts to scan you can block her address via adding a new acl or the switch sends you an email or anything you can imagine inbetween.
If the ipadress is DHCP then you can either choose to lock it down to a specific address in the dhcp scope or you can setup something that lets you know what it is and sets a scripted acl.
So what other things can you do ?
You could set a MAC address access-list and shut down the Mac address passing through the switch.
You can do alot of other things like poisoning the arp address table of the machine, and make things not work the way she wants it. duplicate ip addresses and mac addresses or maybe duplicate windows name.
But that sort of thing can backfire and to be honest, that does not sound like the doings of a person who are in charge of the network and so on..
I would go for the first alternative ie make sure that what she is doing is not ok according to policys, let her know that it is not ok and if she persists in her doings turn her over to the HR department.
Good luck

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*Port Scan* detected - Blocked by host

Hi all.
I'm having almost word for word the same issue as this person a couple of years ago: http://discussions.apple.com/message.jspa?messageID=8648363.
I am using Cyberduck (but have also used filezilla with the same results) and am trying to download and upload files to my website. My host has blocked my IP a number of times, and has told me that I'm making the server think that I'm port scanning. This is the error that they have given me:
+DENY xxx.xxx.xxx.xxx *in27m 23slfd – *Port Scan* detected from xxx.xxx.xxx.xxx. 11 hits in the last 263 seconds+
As per the suggestions in the other thread, I have scanned my computer and checked security etc. Everything appears to be fine. After installing LittleSnitch, I have discovered that my ftp client is attempting to connect to a bundle of different ports. This is a screenshot of what LittleSnitch showed: screenshot. It got up to about 80 different ports before I clicked "allow all" (at this stage, my host had whitelisted my IP to allow me to troubleshoot, but my IP is dynamic and has since changed, so I can no longer test like this).
On another forum, someone told me to connect using an ACTIVE connection - if I do this, I can download/upload a small amount of files (between 5-20) before it starts trying to connect to ports other than 21. At this stage I have to shut it down as I don't want to be blocked again.
Any ideas? I thought I had this sorted out, but it turned out my host had whitelisted me (I hadn't requested it at that stage), and now that I have a new IP address, I'm back to square one. This started happening about 5 days ago - I have been uploading and downloading files using Cyberduck for over 5 years now, with no issues. My computer hasn't changed recently, my internet connection hasn't changed recently, Cyberduck hasn't changed recently (although I did update it to the latest version this morning to try and fix the problem to no avail), I have changed hosts, but I have downloaded files since then without issue, it's only recently that things have changed.

Looks like I can't edit my original question...
The problem is still happening, I've been doing some testing to narrow it down...
+ it's not just my computer (have also tried from my mums PowerPC and my sisters iMac), although it could be a mac thing (I don't have a windows machine to test from, only windows running on a mac, though I will give that a shot later)
+ it's not my internet connection (although it could be my ISP - I tested at my sisters place, who uses the same ISP as me, am looking for another testing location that has a different ISP)
+ it's not my website (have tried uploading to a completely unrelated website with similar results)
+ it's not cyberduck (have tried with filezilla, similar results, also tried via terminal - I don't know how to upload files, but when I connected, it connected through a different port, a 5 digit number, can't remember what now).
Not too sure where to go from here...

Outgoing port scan to find blocked (by ISP)/open ports

Hi,
How can I do a port scan (network ports, where web pages/applications use port number 80 for example)? I would like to find out if my ISP are blocking ports -- get some hard data/facts. I've tried using an online port scanner (one that operates from a web page/server) and according to it, all my ports are blocked -- but I now realise that's incoming (to me) where I didn't initialise the communication. So I suppose to find out what I want I need to initialise the communication -- outgoing (from me) communication. How can I do this? Any software / utilities available anywhere? I tried the "port scan" in Network Utility but this never reported anything. Maybe that will do what I want but I didn't have it set up properly possibly?
Any suggestions / ideas much apprecaited.
Cheers,
John.

Hi,
I'm not sure what you're asking.
What I'm asking about is in connection with the action that some ISP's take described as "traffic shaping". I know they are filtering/blocking because all P2P applications stop working for a period of time each day while email and web pages continue to work fine for example. I'm thinking of complaining to varous organisations because I have it in writing from the ISP they don't do this. They do, but I just want a bit more factual data first, before spending time and money making official complaints.
ISP's rarely block outbound packets
Well there's traffic shaping of some sort happening. I've found out that all incoming initialted outside packets are blocked but things still work fine so I assumed it must be outgoing which are being blocked.
If you can't make an outbound connection, it's usually the return (ACK) packet that gets blocked.
Right, I see. In that case another cooperating machine is needed to find out what I'm after I suppose.
However, most firewalls have a rule that allows packets through that are part of existing connections. That allows you to browse the internet no matter what source port your browser uses.
This isn't about a protection, it's about an ISP stopping/filtering certain uses (ports) via their connections because they don't like it -- too much band width use probably.
By far the best packet sniffer is Wireshark (formally Ethereal) for display of the capture.
From what's said above, a packet sniffer isn't going to be enough right? There needs to be two machines, me sending to another on various ports and it replying on the same port and both machines keeping a log of what's been sent and received, then a comparison made to see what made it and what didn't --- I guess. I wonder if there is such a service, piece of software, whatever, out there?
Is your computer behind a router in your home? Of course that would include Airport. If so, that is more likely the culprit than your ISP.
Yes an AirPort base station. Say "that is more likely the culprit than your ISP" again after visiting http://www.reviewcentre.com/review210703.html and searching the text for "traffic shaping" a few times! I'm pretty sure I've got the base station set up fine. And I think it's more likely my ISP (the one reviewed at that link) is the culpret. P2P software stops working, well it varies, but it reliably stops during "peak hours". It's the ISP for sure.
I don't know any ISP that blocks all ports.
Well, for incoming, according to the http://www.websecurity.mobi/network-security-audit/178-no-open-ports-my-machine- obviously-rediculous.html (which is me expressing surprise about all incoming ports being blocked) my ISP does. Apparently there is quite a difference between incoming and outgoing. Stops people using their machine as any kind of server (according to that link). One thing I do notice is that doing:
sudo tcpdump -v -x -s 128
on the command line while I'm not doing anything on the internet results in nothing -- complete silence as it were. On the dial up connection I've just left doing that command there was stuff coming in all the time -- who knows what, but the complete silence on my new broadband connection would back up the idea that all incoming ports are blocked. I could be wrong of course.
"nmap" is probably the best portscanner available but as you discovered, OS X has one builtin that you can access through the Network Utility.
Oh right I didn't know they were the same thing. I found that the port scan in NU didn't do anything. I left it for hours. There was an IP address which I left as it had filled it in itself. Maybe I should have changed that? How can I get the right address, or does it usually fill it in correctly itself?
What actually does a port scanner like that one do? Send something out? To what? And how does it know if it got there?
It seems to me to get what I need there needs to be first a suitable piece of software, second another computer running the software ready for my computer to talk to and to communicate multiple times and see what happens. My point is it's not just a piece of software that's needed it's also another cooperating computer elsewhere that needed? Otherwise what's the testing software going to talk to to see if the channel is working?
I'll look into the Port Scan in NU again, see if I can get some actual results from it this time. On a broadband connection I left it for about, I don't know, 3 hours maybe, got nothing.
Cheers,
John

I've been blocked because I'm port scanning?!

Servers from work keep throwing blocks up on me because they said they have detected port scanning coming from my IP. Before I go any futher, please forgive me for not knowing my macbook pro inside out. I've google just about every combination of phrases and keywords that halfway relate to my issue and I'm still coming up blank. I downloaded Little Snitch to see if I had anything suspicious going out, but the only thing I see, and it concerns me, is "mDNSResponder" hitting about every 4 seconds. it doesn't say there are any actual connections, but something is going on. Under connection stats it says: UDP ports dns(53) followed by a long list of high numbered ports (49411 & up). It also has 2 IP address associated with it, but not sure if that has anything to do with it.
I saw a lot of talk about finding the mdnsresponder.plist, but that file is not on my mbp. I've gone back as far as my time machine allows and don't see that file either. I just reinstalled a fresh OS and I still have this problem.
Thank you in advance for any help!

No PC on my network, but I did install Windows 7 a few weeks ago on Parallels 7. It didn't install correctly, so I uninstalled. I haven't attempted since.

Mail or some other software is port scanning

I've recently updated all of my machines to Yosemite. Ever since then my IP is periodically blocked by my web host (which hosts my website and email). Every time I contact them for support I'm told that my machine is port scanning on port 585 which automatically blocks me. From what they tell me Mac Mail is the culprit. I have found no indication that port 585 is being used. I've even deleted my mail accounts and re-set them up with the settings that the host requested. There are no settings using 585. But again today it has happened again. Does anyone know how Mail could be doing this of if there is another software that could be scanning?

I think you're being given bogus information, but see below if you want to make sure.
1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem. But with the aid of the test results, the solution may take a few minutes, instead of hours or days.
Don't be put off by the complexity of these instructions. The process is much less complicated than the description. You do harder tasks with the computer all the time.
2. If you don't already have a current backup, back up all data before doing anything else. The backup is necessary on general principle, not because of anything in the test procedure. Backup is always a must, and when you're having any kind of trouble with the computer, you may be at higher than usual risk of losing data, whether you follow these instructions or not.
There are ways to back up a computer that isn't fully functional. Ask if you need guidance.
3. Below are instructions to run a UNIX shell script, a type of program. As I wrote above, it changes nothing. It doesn't send or receive any data on the network. All it does is to generate a human-readable report on the state of the computer. That report goes nowhere unless you choose to share it. If you prefer, you can act on it yourself without disclosing the contents to me or anyone else.
You should be wondering whether you can believe me, and whether it's safe to run a program at the behest of a stranger. In general, no, it's not safe and I don't encourage it.
In this case, however, there are a couple of ways for you to decide whether the program is safe without having to trust me. First, you can read it. Unlike an application that you download and click to run, it's transparent, so anyone with the necessary skill can verify what it does.
You may not be able to understand the script yourself. But variations of the script have been posted on this website thousands of times over a period of years. The site is hosted by Apple, which does not allow it to be used to distribute harmful software. Any one of the millions of registered users could have read the script and raised the alarm if it was harmful. Then I would not be here now and you would not be reading this message.
Nevertheless, if you can't satisfy yourself that these instructions are safe, don't follow them. Ask for other options.
4. Here's a summary of what you need to do, if you choose to proceed:
☞ Copy a line of text in this window to the Clipboard.
☞ Paste into the window of another application.
☞ Wait for the test to run. It usually takes a few minutes.
☞ Paste the results, which will have been copied automatically, back into a reply on this page.
The sequence is: copy, paste, wait, paste again. You don't need to copy a second time. Details follow.
5. You may have started the computer in "safe" mode. Preferably, these steps should be taken in “normal” mode, under the conditions in which the problem is reproduced. If the system is now in safe mode and works well enough in normal mode to run the test, restart as usual. If you can only test in safe mode, do that.
6. If you have more than one user, and the one affected by the problem is not an administrator, then please run the test twice: once while logged in as the affected user, and once as an administrator. The results may be different. The user that is created automatically on a new computer when you start it for the first time is an administrator. If you can't log in as an administrator, test as the affected user. Most personal Macs have only one user, and in that case this section doesn’t apply. Don't log in as root.
7. The script is a single long line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, though you may not see all of it in the browser window, and you can then copy it. If you try to select the line by dragging across the part you can see, you won't get all of it.
Triple-click anywhere in the line of text below on this page to select it:
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A);C="checksum "A[1];"file -b "F|getline T;if(T!~/^(AS.+ (En.+ )?text(, with v.+)?$|(Bo|PO).+ sh.+ text ex|XM)/) F=F" ("T", "C")";else F=F" ("C")";printf("\nContents of %s\n%s\n",F,f);if(l>L) printf("\n ...and %s more line(s)\n",l-L);} ' ' s/^ ?n...://p;s/^ ?p...:/-'$'\t''/p;' 's/0/Off/p' ' END{print NR} ' ' /id: N|te: Y/{i++} END{print i} ' ' / / { print "'"${p[28]}"'";exit;};1;' '/ en/!s/\.//p' ' NR!=13{next};{sub(/[+-M]$/,"",$NF)};'"`S0 39 40`" ' $10~/$L/&&$9!~"localhost" { sub(/.+:/,"",$9);print $1": "$9|"sort|uniq";} ' '/^ +r/s/.+"(.+)".+/\1/p' 's/(.+\.wdgt)\/(Contents\/)?Info\.plist$/\1/p' 's/^.+\/(.+)\.wdgt$/\1/p' ' /l: /{ /DVD/d;s/.+: //;b0'$'\n'' };/s: /{ /V/d;s/^ */- /;H;};$b0'$'\n'' d;:0'$'\n'' x;/APPLE [^:]+$/d;p;' ' /^find: /d;p;' "`S0 44 45`" ' BEGIN{FS="= "} /Path/{print $2} ' ' /^ *$/d;s/^ */ /;' ' s/^.+ |\(.+$$//g;p ' '/\.(appex|pluginkit)\/Contents\/Info\.plist$/p' ' /2/{print "WARN"};/4/{print "CRITICAL"};' ' /EVHF|MACR/d;s/^.+: //p;' );c1=(system_profiler pmset\ -g nvram fdesetup find syslog df vm_stat sar ps crontab iotop top pkgutil 'PlistBuddy 2>&1 -c "Print' whoami cksum kextstat launchctl smcDiagnose sysctl\ -n defaults\ read stat lsbom mdfind ' for i in ${p[24]};do ${c1[18]} ${c2[27]} $i;done;' pluginkit scutil dtrace profiles sed\ -En awk /S*/*/P*/*/*/C*/*/airport networksetup mdutil lsof test osascript\ -e );c2=(com.apple.loginwindow\ LoginHook '" /L*/P*/loginw*' "'tell app \"System Events\" to get properties of login items'|tr , \\\n" 'L*/Ca*/com.ap*.Saf*/E*/* -d 1 -name In*t -exec '"${c1[14]}"' :CFBundleDisplayName" {} \;|sort|uniq' '~ $TMPDIR.. $ -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 $' '.??* -path .Trash -prune -o -type d -name *.app -print -prune' :${p[35]}\" :Label\" '{/,}L*/{Con,Pref}* -type f ! -size 0 -name *.plist -exec plutil -s {} \;' "-f'%N: %l' Desktop L*/Keyc*" therm sysload boot-args status " -F '\$Time \$(RefProc): \$Message' -k Sender kernel -k Message Req 'bad |Beac|caug|corru|dead[^bl]|FAIL|fail|GPU |hfs: Ru|inval|jnl:|last value [1-9]|n Cause: -|NVDA$|pagin|proc: t|Roamed|rror|ssert|Thrott|tim(ed? ?|ing )o|WARN' -k Message Rne 'Goog|ksadm|Roame|SMC:|suhel| VALI|ver-r|xpma' -o -o -k Sender fseventsd -k Message Req SL -o -k Sender Req launchd -k Message Req de: " '-du -n DEV -n EDEV 1 10' 'acrx -o comm,ruid,%cpu' '-t1 10 1' '-f -pfc /var/db/r*/com.apple.*.{BS,Bas,Es,J,OSXU,Rem,up}*.bom' '{/,}L*/Lo*/Diag* -type f -regex .\*[cght] ! -name .?\* ! -name \*ag \( -exec grep -lq "^Thread c" {} \; -exec printf \* \; -o -true $ -execdir stat -f:%Sc:%N -t%F {} \;|sort -t: -k2 |tail -n'${p[38]} '/S*/*/Ca*/*xpc* >&- ||echo No' '-L /{S*/,}L*/StartupItems -type f -exec file {} +' '-L /S*/L*/{C*/Sec*A,Ex}* {/,}L*/{A*d,Ca*/*/Ex,Co{mpon,reM},Ex,In{p,ter},iTu*/*P,Keyb,Mail/B,Pr*P,Qu*T,Scripti,Sec,Servi,Spo,Widg}* -path \\*s/Resources -prune -o -type f -name Info.plist' '/usr/lib -type f -name *.dylib' `awk "${s[31]}"<<<${p[23]}` "/e*/{auto,{cron,fs}tab,hosts,{[lp],sy}*.conf,mach_i*/*,pam.d/*,ssh{,d}_config,*.local} {,/usr/local}/etc/periodic/*/* /L*/P*{,/*}/com.a*.{Bo,sec*.ap}*t {/S*/,/,}L*/Lau*/*t .launchd.conf" list getenv /Library/Preferences/com.apple.alf\ globalstate --proxy '-n get default' -I --dns -getdnsservers\ "${p[N5]}" -getinfo\ "${p[N5]}" -P -m\ / '' -n1 '-R -l1 -n1 -o prt -stats command,uid,prt' '--regexp --only-files --files com.apple.pkg.*|sort|uniq' -kl -l -s\ / '-R -l1 -n1 -o mem -stats command,uid,mem' '+c0 -i4TCP:0-1023' com.apple.dashboard\ layer-gadgets '-d /L*/Mana*/$USER&&echo On' '-app Safari WebKitDNSPrefetchingEnabled' "+c0 -l|awk '{print(\$1,\$3)}'|sort|uniq -c|sort -n|tail -1|awk '{print(\$2,\$3,\$1)}'" -m 'L*/{Con*/*/Data/L*/,}Pref* -type f -size 0c -name *.plist.???????|wc -l' kern.memorystatus_vm_pressure_level '3>&1 >&- 2>&3' );N1=${#c2[@]};for j in {0..9};do c2[N1+j]=SP${p[j]}DataType;done;N2=${#c2[@]};for j in 0 1;do c2[N2+j]="-n ' syscall::'${p[33+j]}':return { @out[execname,uid]=sum(arg0) } tick-10sec { trunc(@out,1);exit(0);} '";done;l=(Restricted\ files Hidden\ apps 'Elapsed time (s)' POST Battery Safari\ extensions Bad\ plists 'High file counts' User Heat System\ load boot\ args FileVault Diagnostic\ reports Log 'Free space (MiB)' 'Swap (MiB)' Activity 'CPU per process' Login\ hook 'I/O per process' Mach\ ports kexts Daemons Agents XPC\ cache Startup\ items Admin\ access Root\ access Bundles dylibs Apps Font\ issues Inserted\ dylibs Firewall Proxies DNS TCP/IP Wi-Fi Profiles Root\ crontab User\ crontab 'Global login items' 'User login items' Spotlight Memory Listeners Widgets Parental\ Controls Prefetching SATA Descriptors App\ extensions Lockfiles Memory\ pressure SMC );N3=${#l[@]};for i in 0 1 2;do l[N3+i]=${p[5+i]};done;N4=${#l[@]};for j in 0 1;do l[N4+j]="Current ${p[29+j]}stream data";done;A0() { id -G|grep -qw 80;v[1]=$?;((v[1]==0))&&sudo true;v[2]=$?;v[3]=`date +%s`;clear >&-;date '+Start time: %T %D%n';};for i in 0 1;do eval ' A'$((1+i))'() { v=` eval "${c1[$1]} ${c2[$2]}"|'${c1[30+i]}' "${s[$3]}" `;[[ "$v" ]];};A'$((3+i))'() { v=` while read i;do [[ "$i" ]]&&eval "${c1[$1]} ${c2[$2]}" \"$i\"|'${c1[30+i]}' "${s[$3]}";done<<<"${v[$4]}" `;[[ "$v" ]];};A'$((5+i))'() { v=` while read i;do '${c1[30+i]}' "${s[$1]}" "$i";done<<<"${v[$2]}" `;[[ "$v" ]];};A'$((7+i))'() { v=` eval sudo "${c1[$1]} ${c2[$2]}"|'${c1[30+i]}' "${s[$3]}" `;[[ "$v" ]];};';done;A9(){ v=$((`date +%s`-v[3]));};B2(){ v[$1]="$v";};for i in 0 1;do eval ' B'$i'() { v=;((v['$((i+1))']==0))||{ v=No;false;};};B'$((3+i))'() { v[$2]=`'${c1[30+i]}' "${s[$3]}"<<<"${v[$1]}"`;} ';done;B5(){ v[$1]="${v[$1]}"$'\n'"${v[$2]}";};B6() { v=` paste -d: <(printf "${v[$1]}") <(printf "${v[$2]}")|awk -F: ' {printf("'"${f[$3]}"'",$1,$2)} ' `;};B7(){ v=`grep -Fv "${v[$1]}"<<<"$v"`;};C0() { [[ "$v" ]]&&sed -E "$s"<<<"$v";};C1() { [[ "$v" ]]&&printf "${f[$1]}" "${l[$2]}" "$v"|sed -E "$s";};C2() { v=`echo $v`;[[ "$v" != 0 ]]&&C1 0 $1;};C3() { v=`sed -E "${s[63]}"<<<"$v"`&&C1 1 $1;};for i in 1 2 7 8;do for j in 0 2 3;do eval D$i$j'(){ A'$i' $1 $2 $3; C'$j' $4;};';done;done;{ A0;D20 0 $((N1+1)) 2;D10 0 $N1 1;B0;C2 27;B0&&! B1&&C2 28;D12 15 37 25 8;A1 0 $((N1+2)) 3;C0;D13 0 $((N1+3)) 4 3;D23 0 $((N1+4)) 5 4;D13 0 $((N1+9)) 59 50;for i in 0 1 2;do D13 0 $((N1+5+i)) 6 $((N3+i));done;D13 1 10 7 9;D13 1 11 8 10;B1&&D73 19 53 67 55;D22 2 12 9 11;D12 3 13 10 12;D23 4 19 44 13;D23 5 14 12 14;D22 6 36 13 15;D22 20 52 66 54;D22 7 37 14 16;D23 8 15 38 17;D22 9 16 16 18;B1&&{ D82 35 49 61 51;D82 11 17 17 20;for i in 0 1;do D82 28 $((N2+i)) 45 $((N4+i));done;};D22 12 44 54 45;D22 12 39 15 21;A1 13 40 18;B2 4;B3 4 0 19;A3 14 6 32 0;B4 0 5 11;A1 17 41 20;B7 5;C3 22;B4 4 6 21;A3 14 7 32 6;B4 0 7 11;B3 4 0 22;A3 14 6 32 0;B4 0 8 11;B5 7 8;B1&&{ A8 18 26 23;B7 7;C3 23;};A2 18 26 23;B7 7;C3 24;D13 4 21 24 26;B4 4 12 26;B3 4 13 27;A1 4 22 29;B7 12;B2 14;A4 14 6 52 14;B2 15;B6 14 15 4;B3 0 0 30;C3 29;A1 4 23 27;B7 13;C3 30;B3 4 0 65;A3 14 6 32 0;B4 0 16 11;A1 26 50 64;B7 16;C3 52;D13 24 24 32 31;D13 25 37 32 33;A2 23 18 28;B2 16;A2 16 25 33;B7 16;B3 0 0 34;B2 21;A6 47 21&&C0;B1&&{ D73 21 0 32 19;D73 10 42 32 40;D82 29 35 46 39;};D23 14 1 62 42;D12 34 43 53 44;D12 22 20 32 25;D22 0 $((N1+8)) 51 32;D13 4 8 41 6;D12 21 28 35 34;D13 27 29 36 35;A2 27 32 39&&{ B2 19;A2 33 33 40;B2 20;B6 19 20 3;};C2 36;D23 33 34 42 37;B1&&D83 35 45 55 46;D23 32 31 43 38;D12 36 47 32 48;D13 10 42 32 41;D13 37 2 48 43;D13 4 5 32 1;D13 4 3 60 5;D12 21 48 49 49;B3 4 22 57;A1 21 46 56;B7 22;B3 0 0 58;C3 47;D22 4 4 50 0;D12 4 51 32 53;D23 22 9 37 7;A9;C2 2;} 2>/dev/null|pbcopy;exit 2>&-
Copy the selected text to the Clipboard by pressing the key combination command-C.
8. Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Click anywhere in the Terminal window and paste by pressing command-V. The text you pasted should vanish immediately. If it doesn't, press the return key.
9. If you see an error message in the Terminal window such as "Syntax error" or "Event not found," enter
exec bash
and press return. Then paste the script again.
10. If you're logged in as an administrator, you'll be prompted for your login password. Nothing will be displayed when you type it. You will not see the usual dots in place of typed characters. Make sure caps lock is off. Type carefully and then press return. You may get a one-time warning to be careful. If you make three failed attempts to enter the password, the test will run anyway, but it will produce less information. In most cases, the difference is not important. If you don't know the password, or if you prefer not to enter it, press the key combination control-C or just press return three times at the password prompt. Again, the script will still run.
If you're not logged in as an administrator, you won't be prompted for a password. The test will still run. It just won't do anything that requires administrator privileges.
11. The test may take a few minutes to run, depending on how many files you have and the speed of the computer. A computer that's abnormally slow may take longer to run the test. While it's running, there will be nothing in the Terminal window and no indication of progress. Wait for the line
[Process completed]
to appear. If you don't see it within half an hour or so, the test probably won't complete in a reasonable time. In that case, close the Terminal window and report what happened. No harm will be done.
12. When the test is complete, quit Terminal. The results will have been copied to the Clipboard automatically. They are not shown in the Terminal window. Please don't copy anything from there. All you have to do is start a reply to this comment and then paste by pressing command-V again.
At the top of the results, there will be a line that begins with the words "Start time." If you don't see that, but instead see a mass of gibberish, you didn't wait for the "Process completed" message to appear in the Terminal window. Please wait for it and try again.
If any private information, such as your name or email address, appears in the results, anonymize it before posting. Usually that won't be necessary.
13. When you post the results, you might see an error message on the web page: "You have included content in your post that is not permitted," or "You are not authorized to post." That's a bug in the forum software. Please post the test results on Pastebin, then post a link here to the page you created.
14. This is a public forum, and others may give you advice based on the results of the test. They speak only for themselves, and I don't necessarily agree with them.
Copyright © 2014 by Linc Davis. As the sole author of this work, I reserve all rights to it except as provided in the Use Agreement for the Apple Support Communities website ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

Catching Port Scanners, or preventing port scans

Does anyone know of way to catch a person who is "port scanning" or "port sweeping" me?
I have Norton AntiVirus, and it blocks the port scans, and gives me the ip address, but I can't seem to find a way to link this to anyone...
Any suggestions?

It enrages me and I want to find them...and hack them, with something other than a computer...
Move on.
For on, you're not going to stop it. It's a fact of life online and there are far more systems out there doing it than you have time to track (unless you're really, really bored).
Secondly, even if the addresses aren't spoofed you'll find one of two situations in 99.9% of all scans:
Either the source is in some remote country like Romania or China who doesn't give two hoots about your IP, or the source is some poor schmuck whose Windows machine has been hacked and he's part of a botnet or other setup where the real culprit is far removed.
In the former case you're wasting your time. In the latter you're targeting the wrong person and you have no chance of finding the real source.
So consider it noise and live with it. Your life will be much happier.

Issues with McAfee IPS and HP PhotoSmart Premium C309g-m performing port scan

Trying to run a HP PhotoSmart Premium C309g-m printer wirelessly and connect to a laptop computer with Windows 7 32-bit operating system. Printer is available for about 3 and a half minutes and then is blocked by McAfee because the printer is trying to perform a UDP port scan. The IP address of the printer is blocked for 10 minutes and then becomes available again. After about 3 and a half minutes, the printer IP address is again blocked by McAfee IPS for 10 minutes and the cycle repeats again. Goes on all day. Difficult to get any work done. Anyone have a fix to stop the port scans? Thanks

Hello JWB46,
Welcome to the HP Forums!
I understand when you scan a document, it takes longer and the background is black with horizontal white lines or a greenish background. I will do my best to assist you! First, I need to find out your operating system on your computer? Windows or Mac?
How is this printer connected? Wireless or USB?
Please make sure you have followed this entire HP document on Color or Brightness Level of Scanned Image is Not Correct. I would like to test out the hardware within your printer. Try copying a blank document on the scanner glass. Let me know if you have the same results. I will be looking forward to hearing from you. Have a great night!
I worked on behalf of HP.

Port Scan is shooting blanks

I am finding it painful to set up VPN so any help anyone can give would be real generous.
I have been trying to connect to a VPN to tunnel L2TP via IPsec over port 1701 and PPTP over port 1723 but having no joy at all.
Macbook (10.5.6) uses mobile broadband USB modem (dynamic IP and telecom APN settings) to access internet. Internet works great, but have been unable to push thru VPN – getting the same error message "Connection terminated by communication device". I've checked firewall settings and it is set to allow all incoming requests. Therefore, there should be no ports blocked.
However, when I check open ports using Port Scan in Network Utilities using my session IP address the results are empty. All I get is the following:
Port Scan has started ...
Port Scanning host: 193.120.116.180
Port Scan has completed ...
Why is this not working? I'm confused
Am I able to check open ports on my Mac using dynamic IP address within active session on my Mac?

I am trying to set up connection to PureVPN for security purposes and have followed their config settings for my Macbook.
So how do I check the ports on my machine, as I'm sure it's not a problem at their end. I only have one machine so don't understand how it is possible to see if ports are being blocked at my end.
Do I run that /var/log/ppp.log in Terminal?

How to report possible Port scanning and DOS/Fraggle Attack??

I have been experiencing lag while surfing the internet. One temporary solution was to get a new IP from VZ but this fix was short lived. So I became curios and dtarted to log connection attempts to my router and noticed what I saw resembled port scans and even a Fraggle/DOS attack at times. I am posting my routers log below and would like to kno how to go about reporting this abuse and what I see as malicious activity?
Mar 29 00:34:16.843: %SEC-6-IPACCESSLOGP: list 115 denied tcp 112.216.99.210(60289) -> .(443), 1 packet
Mar 29 02:09:24.956: %SEC-6-IPACCESSLOGP: list 115 denied tcp 66.249.68.67(44315) -> .(80), 1 packet
Mar 29 02:14:54.973: %SEC-6-IPACCESSLOGP: list 115 denied tcp 66.249.68.67(44315) -> .(80), 4 packets
Mar 29 04:46:18.559: %SEC-6-IPACCESSLOGP: list 115 denied tcp 123.125.67.205(60157) -> .(80), 1 packet
Mar 29 04:51:54.975: %SEC-6-IPACCESSLOGP: list 115 denied tcp 123.125.67.205(60157) -> .(80), 1 packet
Mar 29 08:37:38.717: %SEC-6-IPACCESSLOGP: list 115 denied tcp 66.249.68.67(49683) -> .(80), 1 packet
Mar 29 08:42:54.971: %SEC-6-IPACCESSLOGP: list 115 denied tcp 66.249.68.67(49683) -> .(80), 4 packets
Mar 29 11:58:37.525: %SEC-6-IPACCESSLOGP: list 115 denied tcp 69.162.74.105(4529) -> .(80), 1 packet
Mar 29 12:00:33.395: %SEC-6-IPACCESSLOGP: list 115 denied tcp 209.216.8.220(8615) -> .(443), 1 packet
Mar 29 12:03:55.001: %SEC-6-IPACCESSLOGP: list 115 denied tcp 69.162.74.105(4529) -> .(80), 1 packet
Mar 29 15:09:06.512: %SEC-6-IPACCESSLOGP: list 115 denied tcp 66.249.68.67(39516) -> (80), 1 packet
Mar 29 15:14:54.971: %SEC-6-IPACCESSLOGP: list 115 denied tcp 66.249.68.67(39516) -> (80), 4 packets
Mar 29 20:06:44.831: %SEC-6-IPACCESSLOGP: list 115 denied tcp 190.30.227.242(45712) -> .(80), 1 packet
Mar 29 23:42:44.255: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(58914) -> .(80), 1 packet
Mar 29 23:47:54.968: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(58914) -> .(80), 2 packets
Mar 30 01:19:56.075: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(48356) -> .(80), 1 packet
Mar 30 01:25:54.971: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(48356) -> .(80), 2 packets
Mar 30 01:51:48.109: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(32276) -> .(80), 1 packet
Mar 30 01:56:54.968: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(32276) -> .(80), 2 packets
Mar 30 02:15:11.578: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(48235) -> .(80), 1 packet
Mar 30 02:20:54.969: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(48235) -> .(80), 2 packets
Mar 30 02:49:55.370: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(65092) -> .(80), 1 packet
Mar 30 02:55:54.967: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(65092) -> .(80), 2 packets
Mar 30 03:05:05.854: %SEC-6-IPACCESSLOGP: list 115 denied tcp 59.178.47.229(3152) -> .(23), 1 packet
Mar 30 03:10:54.971: %SEC-6-IPACCESSLOGP: list 115 denied tcp 59.178.47.229(3152) -> .(23), 1 packet
Mar 30 03:19:07.806: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(28767) -> .(80), 1 packet
Mar 30 03:24:54.967: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(28767) -> .(80), 2 packets
Mar 30 03:43:44.223: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(22501) -> (80), 1 packet
Mar 30 03:48:54.968: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(22501) -> (80), 2 packets
Mar 30 04:11:31.035: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(47011) -> .(80), 1 packet
Mar 30 04:16:54.970: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(47011) -> .(80), 2 packets
Mar 30 04:42:01.195: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(56753) -> .(80), 1 packet
Mar 30 04:47:54.967: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(56753) -> .(80), 2 packets
Mar 30 05:11:34.130: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(35301) -> .(80), 1 packet
Mar 30 05:16:54.967: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(35301) -> .(80), 2 packets
Mar 30 05:41:22.621: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(33024) -> .(80), 1 packet
Mar 30 05:46:54.970: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(33024) -> .(80), 2 packets
Mar 30 06:08:02.091: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(54807) -> .(80), 1 packet
Mar 30 06:13:54.970: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(54807) -> .(80), 2 packets
Mar 30 06:34:59.547: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(29217) -> .(80), 1 packet
Mar 30 06:40:54.969: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(29217) -> .(80), 2 packets
Mar 30 07:03:04.100: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(54153) -> .(80), 1 packet
Mar 30 07:08:54.967: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(54153) -> .(80), 2 packets
Mar 30 07:31:13.494: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(17308) -> .(80), 1 packet
Mar 30 07:36:54.969: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(17308) -> .(80), 2 packets
Mar 30 08:02:27.161: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(48707) -> .(80), 1 packet
Mar 30 08:07:54.966: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(48707) -> .(80), 2 packets
Mar 30 08:33:47.283: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(28540) -> .(80), 1 packet
Mar 30 20:04:23.585: %SEC-6-IPACCESSLOGP: list 115 denied tcp 115.89.213.165(22702) -> .4(22), 1 packet
Mar 30 20:21:10.696: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(35592) -> .(80), 1 packet
Mar 30 20:26:54.964: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(35592) -> .(80), 2 packets
Mar 30 20:52:52.313: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(25460) -> .(80), 1 packet
Mar 30 20:57:54.965: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(25460) -> .(80), 2 packets
Mar 30 21:30:11.984: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(17145) -> .(80), 1 packet
Mar 30 21:35:54.963: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(17145) -> .(80), 2 packets
Mar 30 21:43:27.829: %IP_VFR-4-FRAG_TABLE_OVERFLOW: FastEthernet0/1: the fragment table has reached its maximum threshold 16
Mar 30 21:43:27.889: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.200 -> . (0/0), 1 packet
Mar 30 21:48:54.965: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.213 -> (0/0), 1 packet
Mar 30 21:48:54.965: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.214 -> (0/0), 1 packet
Mar 30 21:48:54.969: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.201 -> (0/0), 1 packet
Mar 30 21:48:54.969: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.203 -> (0/0), 1 packet
Mar 30 21:48:54.969: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.202 -> (0/0), 1 packet
Mar 30 21:48:54.969: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.204 -> . (0/0), 1 packet
Mar 30 21:48:54.973: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.205 -> (0/0), 1 packet
Mar 30 21:48:54.973: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.206 -> (0/0), 1 packet
Mar 30 21:48:54.973: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.210 -> . (0/0), 1 packet
Mar 30 21:48:54.977: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.211 -> (0/0), 1 packet
Mar 30 22:01:32.255: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(30967) -> .(80), 1 packet
Mar 30 22:06:54.964: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(30967) -> .(80), 2 packets
Mar 30 22:10:18.301: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(31796) -> .(80), 1 packet
Mar 30 22:15:54.965: %SEC-6-IPACCESSLOGP: list 115 denied tcp 65.52.110.34(31796) -> .(80), 2 packets
Mar 30 23:03:12.464: %SEC-6-IPACCESSLOGP: list 115 denied tcp 88.208.220.10(55906) -> .(21), 1 packet
Mar 30 23:08:54.966: %SEC-6-IPACCESSLOGP: list 115 denied tcp 88.208.220.10(55906) -> .(21), 1 packet
Mar 31 00:41:30.769: %SEC-6-IPACCESSLOGP: list 115 denied tcp 115.89.213.165(35443) -> .(22), 1 packet
Mar 31 03:00:11.425: %SEC-6-IPACCESSLOGP: list 115 denied tcp 128.59.14.102(58521) -> .(80), 1 packet
Mar 31 03:00:12.527: %SEC-6-IPACCESSLOGP: list 115 denied tcp 128.59.14.102(42339) -> .(23), 1 packet
Mar 31 03:05:54.964: %SEC-6-IPACCESSLOGP: list 115 denied tcp 128.59.14.102(41726) -> .(23), 1 packet
Mar 31 03:05:54.964: %SEC-6-IPACCESSLOGP: list 115 denied tcp 128.59.14.102(59178) -> .(80), 1 packet
Mar 31 03:46:26.767: %SEC-6-IPACCESSLOGP: list 115 denied tcp 184.154.4.85(58071) -> .(80), 1 packet
Mar 31 04:12:08.935: %SEC-6-IPACCESSLOGP: list 115 denied tcp 109.104.74.10(51151) -> .(22), 1 packet
Mar 31 12:10:19.683: %SEC-6-IPACCESSLOGP: list 115 denied tcp 66.249.72.53(51886) -> .(80), 1 packet
Mar 31 12:15:54.960: %SEC-6-IPACCESSLOGP: list 115 denied tcp 66.249.72.53(51886) -> .(80), 4 packets
Mar 31 14:23:34.316: %SEC-6-IPACCESSLOGP: list 115 denied tcp 94.251.160.199(32941) -> .(443), 1 packet
Mar 31 14:28:54.962: %SEC-6-IPACCESSLOGP: list 115 denied tcp 94.251.160.199(32941) -> .(443), 1 packet
Mar 31 20:37:34.630: %SEC-6-IPACCESSLOGP: list 115 denied tcp 208.100.1.174(39803) -> .(21), 1 packet
Mar 31 20:40:49.542: %SEC-6-IPACCESSLOGP: list 115 denied tcp 66.249.72.53(53348) -> .(80), 1 packet
Mar 31 20:45:54.958: %SEC-6-IPACCESSLOGP: list 115 denied tcp 66.249.72.53(53348) -> .(80), 4 packets
Mar 31 21:18:03.788: %IP_VFR-4-FRAG_TABLE_OVERFLOW: FastEthernet0/1: the fragment table has reached its maximum threshold 16
Mar 31 21:18:03.832: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.200 -> (0/0), 1 packet
Mar 31 21:23:54.960: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 130.81.137.230 -> (0/0), 2 packets
Mar 31 21:23:54.960: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.202 -> (0/0), 1 packet
Mar 31 21:23:54.964: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.201 -> (0/0), 1 packet
Mar 31 21:23:54.964: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.204 -> . (0/0), 1 packet
Mar 31 21:23:54.964: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.205 -> (0/0), 1 packet
Mar 31 21:23:54.964: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.207 -> . (0/0), 1 packet
Mar 31 21:23:54.968: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.208 -> . (0/0), 1 packet
Mar 31 21:23:54.968: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.206 -> . (0/0), 1 packet
Mar 31 21:23:54.968: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.210 -> . (0/0), 1 packet
Mar 31 21:23:54.972: %SEC-6-IPACCESSLOGDP: list 115 denied icmp 98.117.72.203 -> (0/0), 1 packet
Mar 31 21:57:25.351: %SEC-6-IPACCESSLOGP: list 115 denied tcp 115.89.213.165(59472) -> .(22), 1 packet
Mar 31 22:00:45.852: %SEC-6-IPACCESSLOGP: list 115 denied tcp 87.234.32.189(49412) -> .(25), 1 packet
Mar 31 22:05:54.959: %SEC-6-IPACCESSLOGP: list 115 denied tcp 87.234.32.189(49412) -> .(25), 1 packet

You're getting hit from IPs from everywhere, so there's no true person to ask in regards to this. Whoever had your IP last was probably up to no good, or it's possible for some reason your IP was targeted. Might also be possible that whoever had your IP last was running servers. My Dedicated server gets hit with this nonsense all the time. Sometimes it's an issue with someone trying to DoS one of the game servers I run on it. Causes lag for only a few seconds before the hardware firewall in front of the server kicks in and handles the rest. China I actually wound up blocking access to entirely for a month or two since I've hardly seen anything that wasn't a port scan or an SSH/FTP hacking attempt.
A few of those IPs are owned by Google and Microsoft, which implies there was probably an HTTP server at one point running on the IP you're using now.
========
The first to bring me 1Gbps Fiber for $30/m wins!

Server Admin says that Contribute CS3 is running port scans

My website keeps crashing whenever I try to connect through contribute. The host admin says that when I try to connect Contribute is running port scans, this causes their server to block my IP and subsequently crashes my website.
I connect using SFTP. How can I change the settings to avoid this happening?
The host says that port 22 should be used.
Under preferences, FTP proxy, FTP proxy port is listed as 21. Is this the problem?
Thanks in advance for any help.
-Lindsey

Hi Lindsey,
Can you provide the server log files?

Why does port scan show an open port for application I've never had?

I don't currently and never have used Bacula to backup my Macbook, but for some reason when I do a portscan it often shows a Bacula file daemon being open on port 9102. It also comes up in Netstat as listening, even with my firewall blocking all unnecessary connections, sharing turned off (all), and an Airport ex in front of it also secured. I also cannot find any related files etc. on my machine after a thorough search. Despite my best google and support searches, I couldn't find anyone with the same problem. Is this reason for concern? Either way why would it be there despite it not being ever used on my Mac? I am not well versed in networking, only know enough to get myself in trouble, so thanks in advance for any help.

Ok, I ran a port scan on 9102 and it show it's not responding, but assigned to (bacula-fd)
So what it appears to be is Bacula ( a legitimate program) uses this port, much like Screen Sharing uses port 5900, not necessarily that it's installed on your machine.
It's not uncommong to have open ports, it's so if you ever install the program or use a service it can gain access through the Firewall. You can change that of course to close up everything except certain ports for certain programs.
Now that the firewall is App based, if you don't have the app listed, how do you deny it access?
Well if the program isn't installed on the machine, it can't respond if the port is open or closed.
Simply enable your Firewall and allow the programs you do have and want to access your machine to connect in the Advanced settings.
There is also NoobProof and WaterRoof if you need a GUI/simplicity to enact more complex features of the command line firewall. Block IP addresses and everything. However read up before you mess around, Apple has everythign set up nicely and there are very few successful attacks on Mac's.
If you don't know what your doing, you can actually do more harm opeing up your machine to poential attack.
If your more paranoid, then install LittleSnitch, it's a outgoing firewall and notification software with pop-up window to allow/deny on a per program or request basis. You'll be quite shocked how much is going out in the background without your knowledge.

Strange ARD port 3283 block

My ARD worked fine to two XServes ("tulip" and "video") on the same subnet.
I accidentally turned off ARD on tulip (Server 10.6.2) FROM the client ARD. DUH!
Anyhow, I restarted it following the guidelines here
http://discussions.apple.com/thread.jspa?threadID=2342445&tstart=15
and here http://support.apple.com/kb/HT2370
However, I can't log in any more with ARD on tulip. A port scan shows that port 3283 is blocked.
The firewall service is off. Changing ethernet switch ports with "video" does no good, "video" still works with ARD but tulip does not, so it's not a switch issue. sudo ipfw list shows this
00001 allow udp from any 626 to any dst-port 626
01000 allow ip from any to any via lo0
01010 deny ip from any to 127.0.0.0/8
01020 deny ip from 224.0.0.0/4 to any in
01030 deny tcp from any to 224.0.0.0/4 in
12300 allow tcp from any to any established
12301 allow tcp from any to any out
12302 allow tcp from any to any dst-port 22
12302 allow udp from any to any dst-port 22
12303 allow udp from any to any out keep-state
12304 allow tcp from any to any dst-port 53 out keep-state
12304 allow udp from any to any dst-port 53 out keep-state
12305 allow udp from any to any in frag
12306 allow tcp from any to any dst-port 311
12307 allow tcp from any to any dst-port 625
12308 allow icmp from any to any icmptypes 8
12309 allow icmp from any to any icmptypes 0
12310 allow igmp from any to any
12311 allow tcp from any to any dst-port 23
12311 allow udp from any to any dst-port 23
12312 allow tcp from any to any dst-port 80
12313 allow tcp from any to any dst-port 3283,5900
12313 allow udp from any to any dst-port 3283,5900
65534 deny ip from any to any
65535 allow ip from any to any
ARD needs open TCP and UDP port 3283 and TCP and UDP port 5900. And for encrypted file transfer TCP port 22. 5900 and 22 are open.
Is there any rule that would be blocking port 3283 on tulip?
The ARD Discussion sent me here! Thanking anyone for info.

foilpan, thanks for the response.
I ran kickstart combination, as I mentioned above, many times with no luck, and also manually turned ARD on and off, with full admin privileges.
Port 3283 is closed and stays that way, even though the Firewall service is off and System Preferences>Sharing>Apple Remote Desktop is On.
You need both 5900 and 3283 TCP/UDP for full ARD functionality. Port 22 is used for file transfers.
This is not so much an ARD question as how do I open port 3283 on the server?
Is there a command line or ipfw parameter I can change?
Is the syntax correct in the above ipfw list for 3283?
Thanks

Port Scans

Hi,
I have a problem where I cannot access my website because my hosting providers firewall keeps blocking me. The problem is they say that they are receiving port scans from my IP to blocked ports. They unblock my IP but an hour or so later is blocked again.
Well, I'm not running, to my knowledge, port scans. The only app that would be hitting there systems would be mail.app but that has been working for over a year so I'm assuming those ports are OK.
I've thought this could be a virus/malware or some such so I've installed ClamXAV and run a full scan but nothing has come up.
Does anybody know how I can monitor the outgoing network requests from by machine? Or any other advice on how to track this down.
Cheers
Steve

Hi
Asking them which ports are being scanned might help? If it's a particular port or series of ports you should be able to use "lsof" from the command line.
For example:
sudo lsof -i | grep portnubmer
Where "portnumber" is the number of the port. For example 25, 110 etc, or possibly:
sudo lsof -i | grep LISTEN
Which will list all ports that are "listening."
Possibly "LittleSnitch" may also give you some feedback? It's not something I use so I can't really say for certain.
Tony

Incoming Connections Port Scan warning from anti-virus software

My anti-virus gave me a warning that a port scan had occurred on my Mac, after which I blocked the address of the incoming connection. Does this mean my computer has been hacked and what should I do? Today I also noticed two worrisome outgoing connections entitled "wwwalt2.infoyouaskedfor.com" and "Gemini.leadertech.com" that repeatedly kept appearing on my anti-virus network monitor, one after the other. I entered them in the "Whois" window but it didn't give me any information. My Mac Firewall was already set to only allow incoming connections from applications with certificates, so I don't understand how this happened.

Hi AML225;
Try ClamXav. It is free and runs will on Macs.
Norton even for free is terrible on a Mac. It causes more problems then it solves.
Allan

Poor man's port scan blocker

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